Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/27656
DC Field | Value | Language |
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dc.contributor.author | Ackermann, M. | en_US |
dc.contributor.author | Ajello, M. | en_US |
dc.contributor.author | Baldini, L. | en_US |
dc.contributor.author | Ballet, J. | en_US |
dc.contributor.author | Barbiellini, G. | en_US |
dc.contributor.author | Bastieri, D. | en_US |
dc.contributor.author | Bellazzini, R. | en_US |
dc.contributor.author | Bissaldi, E. | en_US |
dc.contributor.author | Blandford, R. D. | en_US |
dc.contributor.author | Bloom, E. D. | en_US |
dc.contributor.author | Bonino, R. | en_US |
dc.contributor.author | Bottacini, E. | en_US |
dc.contributor.author | Brandt, T. J. | en_US |
dc.contributor.author | Bregeon, J. | en_US |
dc.contributor.author | Bruel, P. | en_US |
dc.contributor.author | Buehler, R. | en_US |
dc.contributor.author | Cameron, R. A. | en_US |
dc.contributor.author | Caputo, R. | en_US |
dc.contributor.author | CARAVEO, PATRIZIA | en_US |
dc.contributor.author | Castro, D. | en_US |
dc.contributor.author | Cavazzuti, E. | en_US |
dc.contributor.author | Charles, E. | en_US |
dc.contributor.author | Cheung, C. C. | en_US |
dc.contributor.author | Chiaro, G. | en_US |
dc.contributor.author | Ciprini, S. | en_US |
dc.contributor.author | Cohen-Tanugi, J. | en_US |
dc.contributor.author | Costantin, D. | en_US |
dc.contributor.author | Cutini, S. | en_US |
dc.contributor.author | D'AMMANDO, FILIPPO | en_US |
dc.contributor.author | de Palma, F. | en_US |
dc.contributor.author | Desai, A. | en_US |
dc.contributor.author | Di Lalla, N. | en_US |
dc.contributor.author | Di Mauro, M. | en_US |
dc.contributor.author | Di Venere, L. | en_US |
dc.contributor.author | Favuzzi, C. | en_US |
dc.contributor.author | Finke, J. | en_US |
dc.contributor.author | Franckowiak, A. | en_US |
dc.contributor.author | Fukazawa, Y. | en_US |
dc.contributor.author | Funk, S. | en_US |
dc.contributor.author | Fusco, P. | en_US |
dc.contributor.author | Gargano, F. | en_US |
dc.contributor.author | Gasparrini, D. | en_US |
dc.contributor.author | Giglietto, N. | en_US |
dc.contributor.author | Giordano, F. | en_US |
dc.contributor.author | GIROLETTI, MARCELLO | en_US |
dc.contributor.author | Green, D. | en_US |
dc.contributor.author | Grenier, I. A. | en_US |
dc.contributor.author | Guillemot, L. | en_US |
dc.contributor.author | Guiriec, S. | en_US |
dc.contributor.author | Hays, E. | en_US |
dc.contributor.author | Hewitt, J. W. | en_US |
dc.contributor.author | Horan, D. | en_US |
dc.contributor.author | Jóhannesson, G. | en_US |
dc.contributor.author | Kensei, S. | en_US |
dc.contributor.author | Kuss, M. | en_US |
dc.contributor.author | Larsson, S. | en_US |
dc.contributor.author | Latronico, L. | en_US |
dc.contributor.author | Lemoine-Goumard, M. | en_US |
dc.contributor.author | Li, J. | en_US |
dc.contributor.author | Longo, F. | en_US |
dc.contributor.author | Loparco, F. | en_US |
dc.contributor.author | Lovellette, M. N. | en_US |
dc.contributor.author | Lubrano, P. | en_US |
dc.contributor.author | Magill, J. D. | en_US |
dc.contributor.author | Maldera, S. | en_US |
dc.contributor.author | Manfreda, A. | en_US |
dc.contributor.author | Mazziotta, M. N. | en_US |
dc.contributor.author | McEnery, J. E. | en_US |
dc.contributor.author | Meyer, M. | en_US |
dc.contributor.author | Mizuno, T. | en_US |
dc.contributor.author | Monzani, M. E. | en_US |
dc.contributor.author | Morselli, A. | en_US |
dc.contributor.author | Moskalenko, I. V. | en_US |
dc.contributor.author | Negro, M. | en_US |
dc.contributor.author | Nuss, E. | en_US |
dc.contributor.author | Omodei, N. | en_US |
dc.contributor.author | ORIENTI, Monica | en_US |
dc.contributor.author | Orlando, E. | en_US |
dc.contributor.author | Ormes, J. F. | en_US |
dc.contributor.author | Palatiello, M. | en_US |
dc.contributor.author | Paliya, V. S. | en_US |
dc.contributor.author | Paneque, D. | en_US |
dc.contributor.author | Perkins, J. S. | en_US |
dc.contributor.author | PERSIC, Massimo | en_US |
dc.contributor.author | Pesce-Rollins, M. | en_US |
dc.contributor.author | Piron, F. | en_US |
dc.contributor.author | Porter, T. A. | en_US |
dc.contributor.author | Principe, G. | en_US |
dc.contributor.author | Rainò, S. | en_US |
dc.contributor.author | Rando, R. | en_US |
dc.contributor.author | Rani, B. | en_US |
dc.contributor.author | Razzaque, S. | en_US |
dc.contributor.author | Reimer, A. | en_US |
dc.contributor.author | Reimer, O. | en_US |
dc.contributor.author | Reposeur, T. | en_US |
dc.contributor.author | Sgrò, C. | en_US |
dc.contributor.author | Siskind, E. J. | en_US |
dc.contributor.author | Spandre, G. | en_US |
dc.contributor.author | Spinelli, P. | en_US |
dc.contributor.author | Suson, D. J. | en_US |
dc.contributor.author | Tajima, H. | en_US |
dc.contributor.author | Thayer, J. B. | en_US |
dc.contributor.author | Tibaldo, L. | en_US |
dc.contributor.author | Torres, D. F. | en_US |
dc.contributor.author | Tosti, G. | en_US |
dc.contributor.author | Valverde, J. | en_US |
dc.contributor.author | Venters, T. M. | en_US |
dc.contributor.author | Vogel, M. | en_US |
dc.contributor.author | Wood, K. | en_US |
dc.contributor.author | Wood, M. | en_US |
dc.contributor.author | Zaharijas, G. | en_US |
dc.contributor.author | Fermi-LAT Collaboration | en_US |
dc.contributor.author | Biteau, J. | en_US |
dc.date.accessioned | 2020-10-07T14:08:48Z | - |
dc.date.available | 2020-10-07T14:08:48Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.issn | 0067-0049 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/27656 | - |
dc.description.abstract | We present a search for spatial extension in high-latitude (| b| > 5^\circ ) sources in recent Fermi point source catalogs. The result is the Fermi High-Latitude Extended Sources Catalog, which provides source extensions (or upper limits thereof) and likelihood profiles for a suite of tested source morphologies. We find 24 extended sources, 19 of which were not previously characterized as extended. These include sources that are potentially associated with supernova remnants and star-forming regions. We also found extended γ-ray emission in the vicinity of the Cen A radio lobes and—at GeV energies for the first time—spatially coincident with the radio emission of the SNR CTA 1, as well as from the Crab Nebula. We also searched for halos around active galactic nuclei, which are predicted from electromagnetic cascades induced by the e <SUP>+</SUP> e <SUP>-</SUP> pairs that are deflected in intergalactic magnetic fields. These pairs are produced when γ-rays interact with background radiation fields. We do not find evidence for extension in individual sources or in stacked source samples. This enables us to place limits on the flux of the extended source components, which are then used to constrain the intergalactic magnetic field to be stronger than 3 × 10<SUP>-16</SUP> G for a coherence length λ ≳ 10 kpc, even when conservative assumptions on the source duty cycle are made. This improves previous limits by several orders of magnitude. | en_US |
dc.language.iso | eng | en_US |
dc.title | The Search for Spatial Extension in High-latitude Sources Detected by the Fermi Large Area Telescope | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/1538-4365/aacdf7 | en_US |
dc.identifier.scopus | 2-s2.0-85052388013 | en_US |
dc.identifier.isi | 000441093400001 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/1538-4365/aacdf7 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 237 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 32 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | THE ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2018ApJS..237...32A | en_US |
dc.relation.ercsector | Scienze Fisiche Settori ERC (ERC) di riferimento::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
item.cerifentitytype | Publications | - |
crisitem.journal.journalissn | 0067-0049 | - |
crisitem.journal.ance | E016254 | - |
crisitem.author.dept | IASF Milano | - |
crisitem.author.dept | IRA Bologna | - |
crisitem.author.dept | IRA Bologna | - |
crisitem.author.dept | IRA Bologna | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.orcid | 0000-0003-2478-8018 | - |
crisitem.author.orcid | 0000-0001-7618-7527 | - |
crisitem.author.orcid | 0000-0002-8657-8852 | - |
crisitem.author.orcid | 0000-0003-4470-7094 | - |
crisitem.author.orcid | 0000-0003-1853-4900 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
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Ackermann_2018_ApJS_237_32.pdf | Pdf editoriale | 6.54 MB | Adobe PDF | View/Open |
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